Breakthrough technology study for patients suffering from life-threatening bloodstream infections proceeds into next phase with first patient enrollment
July 10, 2024

Stephanie Connolly

Mayo Clinic enrolls first patient for ExThera Medical’s PURIFY-RCT II trial

MARTINEZ, Calif. – ExThera Medical Corporation’s PURIFY-RCT II trial to evaluate the efficacy of pathogen removal from severely ill patients suffering from pathogen shock is moving forward with the first patient enrollment at Mayo Clinic.  This comes after ExThera Medical completed the first phase of the prospective interventional multicenter PURIFY-RCT trial, where pharmacokinetic/ pharmacodynamic safety was demonstrated.  This means the Seraph 100 blood filter treatment does not reduce bloodstream concentrations of tested anti-infective medications that are currently used as a critical frontline/standard of care treatment against bloodstream infections.

“Having successfully completed the PK/PD phase of the PURIFY-RCT trial, we are excited to begin enrolling patients to further demonstrate efficacy of Seraph 100 in the treatment of pathogen-induced septic shock,” said Erin Borger, CEO of ExThera Medical. “Enrolling the first patient in this phase of the trial is a crucial milestone toward commercial availability and growth in this therapy space.”

The Seraph 100 enables infection source control through rapid extracorporeal blood filtration of pathogens and has been granted multiple Breakthrough Device Designations for patients suffering from life-threatening bloodstream infections, having been deemed a “First-In-Class” medical device by the U.S. FDA.

“Reducing pathogens from blood stream infection patients in the ICU addresses a tremendous unmet need,” said Mink Chawla, M.D., and Chief Medical Officer of ExThera Medical. “We are excited about the prospects of this study, and if successful, this investigational treatment can be used for patients where anti-infective drugs are inadequate or to combat the next pandemic.”

The PURIFY-RCT trial is sponsored by the Department of Defense in collaboration with the Henry M. Jackson Foundation and the Uniformed Services University of Health Sciences to evaluate the safety and efficacy of the Seraph® 100 Microbind® Affinity Blood Filter. The clinical trial will be conducted in centers across the United States, targeting improvements in both clinical outcome and health economic endpoints.

# # #

About ExThera Medical Corporation
ExThera Medical Corporation develops and commercializes extracorporeal blood filtration devices, including the Seraph® 100 MicroBind® Affinity Blood Filter for removing a broad range of pathogens from the bloodstream of patients. Seraph can be used in hospitals, clinics, on battlefields and in other austere environments to address nosocomial and community-acquired infections as well as those caused by battlefield wounds, pandemics, and biological warfare agents. ExThera Medical’s extracorporeal products have demonstrated life-saving capabilities in a wide range of critically ill patients suffering from sepsis, COVID-19, and many other severe bloodstream infections. With a growing body of outcome and health economic evidence from independent clinical studies, success in the DARPA Dialysis-Like Therapeutics program, and from successful clinical use in the US, the EU, and the Middle East, the company is well positioned to serve healthcare professionals and patients alike. The Seraph 100 attained CE Mark and is commercially available in the EU under a broad Indication For Use. The Seraph 100 has FDA Emergency Use Authorization (EUA) for treatment of COVID-19 in the USA.

For more information visit the company’s website at

About Seraph 100 and the ONCOBind Procedure
As a patient’s blood flows through the Seraph 100 filter, it passes through a bed of small beads with receptors that mimic the receptors on human cells that pathogens target when they invade the body. Many harmful substances are quickly captured and adsorbed onto the surface of the beads and are thereby subtracted from the bloodstream. Seraph adds nothing to the bloodstream. It targets the pathogens that cause the infection, while it also binds and removes harmful substances generated by the pathogen and by the body’s response to the infection. Seraph’s proprietary adsorption media (the beads) constitute a flexible platform that uses immobilized (chemically bonded) heparin for its well-established blood compatibility and its unique ability to bind circulating tumor cells, bacteria, viruses, fungi, and important sepsis mediators reported to contribute to organ failure during sepsis.

For more news stories on the Seraph 100 and the ONCOBind (cancer) Procedure, click here.

All information contained in this news release derives from plausible, reliable sources which, however, have not been independently examined. There is no warranty, confirmation or guarantee, and no responsibility or liability is taken concerning correctness or completeness. As far as it is allowed by the relevant law, no liability whatsoever is taken on for any direct or indirect loss caused by the deployment of this news release or its contents. This communication includes forward-looking statements regarding events, trends and business prospects that may affect our future operating results and financial position. Such statements are subject to risks and uncertainties that could cause our actual results and financial position to differ materially. The investment and/or the revenues that arise from it can rise or fall. A total loss is possible. Persons who are in possession of this news release are requested to obtain information concerning possible legal limitations and to observe them accordingly. We assume no responsibility to update or revise any forward-looking statements contained in this news release to reflect events, trends, or circumstances after the date of this news release. Results from case studies (reviews) may not be predictive of future results.